实验拓扑

S5280为下行设备

S6850_1 -- S6850_2

​ XGE_0/49为保活链路

​ FGE_0/53与FGE_0/54组成聚合口1

S5820与两台drni交换机聚合口为2

实验步骤：

（1）链路聚合

1.S5820配置

sysname sw1  #改名
[sw1]int Bridge-Aggregation  1   #创建聚合接口
[sw1]link-aggregation mode dynamic   #聚合改为动态聚合
[sw1]interface Ten-GigabitEthernet 1/0/49
[sw1-Ten-GigabitEthernet1/0/49]port link-aggregation  group 1
[sw1]interface Ten-GigabitEthernet 1/0/50
[sw1-Ten-GigabitEthernet1/0/50]port link-aggregation  group 1

2.S6850_1 配置 S6850_2同理

sysname 6850  #改名
[6850]int Bridge-Aggregation  1 
[6850-Bridge-Aggregation3]link-aggregation mode dynamic
[6850-FortyGigE1/0/54]  port link-aggregation group 1
[6850-FortyGigE1/0/53]  port link-aggregation group 1

（二）DRNI配置

3.drni基础配置 两台设备同理

[6850] drni system-mac 1-1-1        /配置drni的MAC地址

[6850] drni system-number 1         /配置drni系统的编号  S6850_2需配置为2

[6850] drni system-priority 123     /配置drni的优先级

4.配置Keepalive报文的目的IP地址和源IP地址

[6850]int Ten-GigabitEthernet 1/0/49
[6850-Ten-GigabitEthernet1/0/49]port link-mode route 
[6850-Ten-GigabitEthernet1/0/49]ip address  1.1.1.2 24
[6850-Ten-GigabitEthernet1/0/49]drni keepalive ip destination 1.1.1.1 source 1.1.1.2

# 配置Keepalive链路接口为保留接口。
[6850]drni mad exclude interface Ten-GigabitEthernet 1/0/49

[6850_2]int Ten-GigabitEthernet 1/0/49
[6850_2-Ten-GigabitEthernet1/0/49]port link-mode route 
[6850_2-Ten-GigabitEthernet1/0/49]ip address  1.1.1.1 24
[6850_2-Ten-GigabitEthernet1/0/49]drni keepalive ip destination 1.1.1.2 source 1.1.1.1

# 配置Keepalive链路接口为保留接口。
[6850_2]drni mad exclude interface Ten-GigabitEthernet 1/0/49

5.配置1号聚合口为ipp口 两台交换机同理

[6850]interface bridge-aggregation 1
[6850-Bridge-Aggregation1] port drni intra-portal-port 1

（三）DRNI与汇聚链路聚合

drni两台设备配置

[6850]interface bridge-aggregation 2
[6850-Bridge-Aggregation2]link-aggregation mode dynamic
[6850]interface Ten-GigabitEthernet 1/0/50
[6850-Ten-GigabitEthernet1/0/50]port link-aggregation group 2
[6850]interface Bridge-Aggregation 2
[6850-Bridge-Aggregation2]port drni group 2